Yasu

Yasu may refer to a minor character that appears in the "Assassins" arc of the manga, and adaptations that source from it. He is an old friend of Joe Shimamura, from his days as a delinquent (or orphanage, in the case of the 2001 anime).

The characters used to represent his name also are used for the word yasu/"cheap", making his name an illustrative pun, as he's broke and would bully someone and mooch their food off of them. His surname is also shown to be "Hanaoka" on his door nameplate in the manga, however, this could also be part of an alias.